One-Way valve Prosthesis for Percutaneous Placement Within the Venous System
First Claim
1. A one-way venous valve prosthesis for percutaneous placement within a vein comprising:
- a valve body having an inlet and an outlet with a lumen that extends there between, the valve body being operable to alternate betweena closed configuration wherein the valve body has a double cone shape with apexes located at a midsection of the valve body, wherein a valve seat is defined within the lumen of the valve body at the midsection thereof, andan open configuration wherein the valve body assumes a double frustoconical shape,wherein the valve seat is constricted to prevent blood flow there through when the valve body is in the closed configuration and the valve seat is expanded to allow blood flow there through when the valve body is in the open configuration.
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Accused Products
Abstract
A one-way valve prosthesis for percutaneous placement within a vein, the valve including a valve body having an inlet and an outlet with a lumen that extends there between. The valve body is operable to alternate between a closed configuration wherein the valve body has a double cone shape and an open configuration wherein the valve body has a double frustoconical shape. A valve seat if formed within the lumen of the valve body at a midsection thereof. The valve seat is constricted to prevent flow there through when the valve body is in the closed configuration and the valve seat is open to allow flow there through when the valve body is in the open configuration. The valve seat opens in response to an actuation pressure and closes in the absence of the actuation pressure.
41 Citations
20 Claims
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1. A one-way venous valve prosthesis for percutaneous placement within a vein comprising:
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a valve body having an inlet and an outlet with a lumen that extends there between, the valve body being operable to alternate between a closed configuration wherein the valve body has a double cone shape with apexes located at a midsection of the valve body, wherein a valve seat is defined within the lumen of the valve body at the midsection thereof, and an open configuration wherein the valve body assumes a double frustoconical shape, wherein the valve seat is constricted to prevent blood flow there through when the valve body is in the closed configuration and the valve seat is expanded to allow blood flow there through when the valve body is in the open configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A one-way venous valve prosthesis for percutaneous placement within a vein comprising:
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a valve body having a first conical section with an inlet and a second conical section with an outlet and a lumen that extends between the inlet and the outlet, the valve body operable to alternate between a closed configuration wherein the valve body has a double cone shape with apexes located at a midsection of the valve body, wherein a valve seat is defined within the lumen of the valve body at the midsection thereof, and an open configuration wherein the valve body has a double frustoconical shape, wherein the valve seat is constricted to prevent flow there through when the valve body is in the closed configuration and the valve seat is expanded to allow flow there through when the valve body is in the open configuration, and wherein the first conical section has a tapered wall thickness that continually decreases from the inlet to the midsection of the valve body and the second conical section has a tapered wall thickness that continually increases from the midsection of the valve body to the outlet such that the valve seat expands to the open configuration in response to an actuation pressure and the valve seat closes in the absence of the actuation pressure. - View Dependent Claims (13, 14, 15)
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16. A percutaneous method of repairing an insufficient native valve within a vein, the method comprising the steps of:
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percutaneously introducing a delivery system having a valve prosthesis loaded thereon into the patient, wherein the valve prosthesis has a valve body including an inlet and an outlet with a lumen that extends there between, the valve body operable to alternate between a closed configuration wherein the valve body has a double cone shape with a valve seat defined within the lumen of the valve body at a midsection thereof, and an open configuration wherein the valve body has a double frustoconical shape, wherein the valve seat is constricted to prevent flow there through when the valve body is in the closed configuration and the valve seat is open to allow flow there through when the valve body is in the open configuration; tracking the valve prosthesis to the insufficient native valve; and implanting the valve prosthesis such that the valve body spans across the insufficient native valve. - View Dependent Claims (17, 18, 19, 20)
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Specification